/*
 * Copyright (c) 2011-2019 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 * which is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 */

package examples;

import io.vertx.core.Vertx;
import io.vertx.core.dns.*;

import java.util.List;

/**
 * @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
 */
public class DNSExamples {

  public void example1(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "10.0.0.1");
  }

  public void example1_(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(new DnsClientOptions()
      .setPort(53)
      .setHost("10.0.0.1")
      .setQueryTimeout(10000)
    );
  }

  public void example1__(Vertx vertx) {
    DnsClient client1 = vertx.createDnsClient();

    // Just the same but with a different query timeout
    DnsClient client2 = vertx.createDnsClient(new DnsClientOptions().setQueryTimeout(10000));
  }

  public void example2(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .lookup("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          System.out.println(ar.result());
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example3(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .lookup4("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          System.out.println(ar.result());
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example4(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .lookup6("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          System.out.println(ar.result());
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example5(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveA("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<String> records = ar.result();
          for (String record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example6(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveAAAA("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<String> records = ar.result();
          for (String record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example7(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveCNAME("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<String> records = ar.result();
          for (String record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example8(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveMX("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<MxRecord> records = ar.result();
          for (MxRecord record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example9(MxRecord record) {
    record.priority();
    record.name();
  }

  public void example10(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveTXT("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<String> records = ar.result();
          for (String record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example11(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveNS("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<String> records = ar.result();
          for (String record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example12(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolveSRV("vertx.io")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          List<SrvRecord> records = ar.result();
          for (SrvRecord record : records) {
            System.out.println(record);
          }
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  private static SrvRecord getSrvRecord() {
    return null;
  }

  public void example13(SrvRecord record) {
    record.priority();
    record.name();
    record.weight();
    record.port();
    record.protocol();
    record.service();
    record.target();
  }

  public void example14(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .resolvePTR("1.0.0.10.in-addr.arpa")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          String record = ar.result();
          System.out.println(record);
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example15(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "9.9.9.9");
    client
      .reverseLookup("10.0.0.1")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          String record = ar.result();
          System.out.println(record);
        } else {
          System.out.println("Failed to resolve entry" + ar.cause());
        }
      });
  }

  public void example16(Vertx vertx) {
    DnsClient client = vertx.createDnsClient(53, "10.0.0.1");
    client
      .lookup("nonexisting.vert.xio")
      .onComplete(ar -> {
        if (ar.succeeded()) {
          String record = ar.result();
          System.out.println(record);
        } else {
          Throwable cause = ar.cause();
          if (cause instanceof DnsException) {
            DnsException exception = (DnsException) cause;
            DnsResponseCode code = exception.code();
            // ...
          } else {
            System.out.println("Failed to resolve entry" + ar.cause());
          }
        }
      });
  }
}
